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Finding the Fourth Proportional to 629.25, 943.24 and 474.72

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Solution

The fourth proportional to 629.25, 943.24 and 474.72 is: 711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.25 : 943.24 = 474.72 : x
  2. Step 2: Convert to fraction form
    629.25/943.24 = 474.72/x
  3. Step 3: Cross multiply
    629.25x = 943.24 × 474.72
  4. Step 4: Simplify right side
    629.25x = 447,774.89
  5. Step 5: Solve for x
    x = 447,774.89/629.25
  6. Step 6: Final answer
    x = 711.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.